/*
 * BEEM is a videoconference application on the Android Platform.
 * Copyright (C) 2009 by Frederic-Charles Barthelery,
 * Jean-Manuel Da Silva,
 * Nikita Kozlov,
 * Philippe Lago,
 * Jean Baptiste Vergely,
 * Vincent Veronis.
 * This file is part of BEEM.
 * BEEM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * BEEM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with BEEM. If not, see <http://www.gnu.org/licenses/>.
 * Please send bug reports with examples or suggestions to
 * contact@beem-project.com or http://dev.beem-project.com/
 * Epitech, hereby disclaims all copyright interest in the program "Beem"
 * written by Frederic-Charles Barthelery,
 * Jean-Manuel Da Silva,
 * Nikita Kozlov,
 * Philippe Lago,
 * Jean Baptiste Vergely,
 * Vincent Veronis.
 * Nicolas Sadirac, November 26, 2009
 * President of Epitech.
 * Flavien Astraud, November 26, 2009
 * Head of the EIP Laboratory.
 */
package com.beem.project.beem.utils;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.NetworkInfo.DetailedState;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.telephony.TelephonyManager;

/**
 * The Class BeemConnectivity.
 */
public final class BeemConnectivity {

	/**
	 * Private constructor to forbid instantiation.
	 */
	private BeemConnectivity() {}

	/**
	 * Checks if is connected.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is connected
	 */
	public static boolean isConnected(final Context ctx) {
		ConnectivityManager cm = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo ni = cm.getActiveNetworkInfo();
		return ni != null && ni.isConnected();
	}

	/**
	 * Checks if is wifi.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is wifi
	 */
	public static boolean isWifi(final Context ctx) {
		WifiManager wm = (WifiManager) ctx.getSystemService(Context.WIFI_SERVICE);
		WifiInfo wi = wm.getConnectionInfo();
		if (wi != null
				&& (WifiInfo.getDetailedStateOf(wi.getSupplicantState()) == DetailedState.OBTAINING_IPADDR || WifiInfo
						.getDetailedStateOf(wi.getSupplicantState()) == DetailedState.CONNECTED)) { return false; }
		return false;
	}

	/**
	 * Checks if is umts.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is umts
	 */
	public static boolean isUmts(final Context ctx) {
		TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
		return tm.getNetworkType() >= TelephonyManager.NETWORK_TYPE_UMTS;
	}

	/**
	 * Checks if is edge.
	 * 
	 * @param ctx
	 *            the ctx
	 * @return true, if is edge
	 */
	public static boolean isEdge(final Context ctx) {
		TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
		return tm.getNetworkType() == TelephonyManager.NETWORK_TYPE_EDGE;
	}

}
